pack-refs: Always add sorted trait

Refs are always sorted in jgit (while reading the packed-refs
or while adding new refs to it). Skip the peeled check for
writing sorted trait.

Change-Id: If3a54610bc51700268bc296238d9bb8bea49f932

org.eclipse.jgit/src/org/eclipse/jgit/lib/RefWriter.java

diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefWriter.java b/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefWriter.java
index 58aed82..a6890f5 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefWriter.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/lib/RefWriter.java
@@ -136,12 +136,12 @@ public void writePackedRefs() throws IOException {
 		}
 
 		final StringWriter w = new StringWriter();
+		w.write(RefDirectory.PACKED_REFS_HEADER);
+		w.write(RefDirectory.PACKED_REFS_SORTED);
 		if (peeled) {
-			w.write(RefDirectory.PACKED_REFS_HEADER);
 			w.write(RefDirectory.PACKED_REFS_PEELED);
-			w.write(RefDirectory.PACKED_REFS_SORTED);
-			w.write('\n');
 		}
+		w.write('\n');
 
 		final char[] tmp = new char[Constants.OBJECT_ID_STRING_LENGTH];
 		for (Ref r : refs) {